Dual Thermostat
ZR 011

  • NC / NO or NO / NO in one unit
  • Separate adjustable temperatures
  • Color coded temperature dials
  • DIN rail mountable

The ZR 011 houses two separate thermostats, allowing the independent control of heating and cooling or other equipment.

Thermostat NC (normally closed): Thermostat opens at temperature rise - for regulating heaters or for switching signal devices. Comes with red temperature dial.

Thermostat NO (normally open): Thermostat closes at temperature rise - for regulating filter fans and heat exchangers or for switching signal devices. Comes with blue temperature dial.

Switching difference12.6 °F ± 7 °F tolerance (7 K ± 4 K)
Sensor elementthermostatic bimetal
Contact typesnap-action contact
Service life> 100,000 cycles
Max. switching capacityNC: 10 A resistive / 2 A inductive @ AC 250 V
NO: 5 A resistive / 2 A inductive @ AC 250 V
15 A resistive / 2 A inductive @ AC 120 V
DC 30 W (DC 24-72 V)
Max. inrush currentAC 16 A for 10 sec.
Connection4-pole terminal, clamping torque 0.5 Nm max.:
solid wire - AWG 14 max. (2.5 mm²)
stranded wire1 - AWG 16 max. (1.5 mm²)
Housingplastic, UL 94V-0, light grey
Mountingclip for 35 mm DIN rail, EN 60715
Mounting positionvariable
Operating / Storage temperature-49 to +176 °F (-45 to +80 °C)
Operating / Storage humiditymax. 90 %RH (non-condensing)
Dimensions2.6 x 2.0 x 1.8” (67 x 50 x 46 mm)
Weightapprox. 3.2 oz. (90 g)
Protection typeIP20
ApprovalsUL File No. E164102, CSA, VDE, EAC

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¹ When connecting with stranded wires, wire end ferrules must be used.

Important note: The contact system of the regulator is subjected to environmental influences, thus the contact resistance may change. This can lead to a voltage drop and/or self-heating of the contacts.

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Part No.               Setting Range              Setting Range
01172.0-00NC - open on rise0 to +60 °CNO - close on rise0 to +60 °C
01172.0-01NC - open on rise+32 to +140 °FNO - close on rise+32 to +140 °F
01175.0-00NC - open on rise-10 to +50 °CNO - close on rise+20 to +80 °C
01175.0-01NC - open on rise+14 to +122 °FNO - close on rise+68 to +176 °F
01176.0-00²NO - close on rise0 to +60 °CNO - close on rise0 to +60 °C
01176.0-01²NO - close on rise+32 to +140 °FNO - close on rise+32 to +140 °F

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² For regulating heat exchangers and fans (e. g. LE 019) and as an alarm contact for monitoring the interior temperature of electronic enclosures.

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Dimensioned Drawing

Dual Thermostat ZR 011

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